POLA AKTIVITAS ORANGUTAN SUMATERA (PONGO ABELII) PADA STRUKTUR DAN KOMPOSISI VEGETASI HUTAN DI PUSAT PENGAMATAN ORANGUTAN SUMATERA TAMAN NASIONAL GUNUNG LEUSER
ABSTRACT: Forest act as a
habitat which is one of the main elemen in orangutan lives. Increasing rate of
forest degradation in recent years considerable influence on the orangutan
population growth, its looks from the orangutan population decline
significantly in recent years. Therefore, it is necessary to the preservation
of orangutans through habitat management, and ecological and quantitative
aspect of orangutan become interest of this study. The methodology which used
in this research are the direct observation of daily activities orangutan’s and
vegetation analysis in the forest spots that have been passed by the orangutan.
The result of this research shows that orangutan average active starting at
07.33 WIB and start to make a nest for sleep approximately at 18.15 WIB with an
average length of daily activity orangutan approximately 10 hours 42 minutes.
Daily activity averange of orangutan for proportion duration are 15,03% for
feeding, 36,59% for moving, 44,82 % for resting, and 3,56% for nesting and for
frequencies are 24,09% for feeding, 32,95% for moving, 37,76% for resting, and
5,2%% for nesting. The composition of forest vegetation consists of 24 species
of trees, 15 species of poles, and 20 species of saplings which identified
overall approximately 88,53% of food plants. PPOS forest area has an index of
species diversity (Sannon Wiener index) 2.717 species of trees, 2,235 species
of poles, and 2,554 species of saplings.
Keywords: Sumatran Orangutan,
Population, Structure and composition of forest vegetation, Sumatran Orangutan
Observation Center Gunung Leuser National Park
Penulis: Reza Rangkuti, Pindi
Patana, Siti Latifah
Kode Jurnal: jpkehutanandd130083
